US6633216B2 - Self-locating coil assembly - Google Patents

Self-locating coil assembly Download PDF

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Publication number
US6633216B2
US6633216B2 US09/760,075 US76007501A US6633216B2 US 6633216 B2 US6633216 B2 US 6633216B2 US 76007501 A US76007501 A US 76007501A US 6633216 B2 US6633216 B2 US 6633216B2
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United States
Prior art keywords
bobbin
coil
coil assembly
flux
pair
Prior art date
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Expired - Fee Related, expires
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US09/760,075
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US20020093411A1 (en
Inventor
Douglas Lewin
Paolo Rea
David E. Collins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Active Safety US Inc
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Kelsey Hayes Co
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Publication date
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Assigned to KELSEY-HAYES COMPANY reassignment KELSEY-HAYES COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLINS, DAVID E., LEWIN, DOUGLAS, REA, PAOLO
Priority to US09/760,075 priority Critical patent/US6633216B2/en
Priority to DE10295687T priority patent/DE10295687T5/en
Priority to PCT/US2002/004678 priority patent/WO2002055355A2/en
Priority to US10/466,226 priority patent/US6985060B2/en
Publication of US20020093411A1 publication Critical patent/US20020093411A1/en
Assigned to JPMORGAN CHASE BANK reassignment JPMORGAN CHASE BANK THE US GUARANTEE AND COLLATERAL AGREEMENT Assignors: KELSEY-HAYES COMPANY
Publication of US6633216B2 publication Critical patent/US6633216B2/en
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Assigned to JPMORGAN CHASE BANK, N.A. reassignment JPMORGAN CHASE BANK, N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KELSEY-HAYES COMPANY, TRW AUTOMOTIVE U.S. LLC, TRW VEHICLE SAFETY SYSTEMS INC.
Adjusted expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/126—Supporting or mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/062—Details of terminals or connectors for electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/127—Assembling

Definitions

  • This invention relates in general to a coil assembly and more particularly to a coil assembly that fits snuggly about a valve cartridge armature and that encounters minimal axial translation due to manufacturing tolerances.
  • a conventional coil assembly includes a coil in the form of an insulated magnet wire wound on an insulated bobbin.
  • the bobbin supports a pair of terminals. Lead wires of the magnet wire are wound upon the terminals.
  • the terminals may be connected to a current source. Current passing through the magnet wire produces magnetic flux.
  • Valves controlled by coil assemblies include an axially shiftable armature.
  • the armature is biased by spring to maintain a valve ball in a normally opened or closed position.
  • the valve ball is adapted to cooperate with a valve seat member, which is provided in a valve body.
  • the armature typically slides within a valve sleeve.
  • the coil assembly is carried by the valve sleeve.
  • Coil assemblies for controlling valves like the valve described above are typically enclosed by a flux return casing.
  • An annular flux ring is often disposed within an open end of the bobbin.
  • the annular flux ring is adapted to engage the flux return casing to complete a magnetic flux path that is adapted to pass through the armature and the valve seat member.
  • the armature and sleeve must fit within a close tolerance of the bobbin.
  • the bobbin must fit within a close tolerance of the flux return casing.
  • the annular flux ring, the flux return casing, the armature, and the valve seat member must make sufficient contact with one another.
  • a plurality of valves is often supported by a hydraulic control unit. Each of the valves is controlled by a separate coil assembly.
  • the coil assemblies are typically controlled by an electronic control unit.
  • the electronic control unit is often coupled to the coil assemblies via a lead frame or multi-chip module that is adapted to support a plurality of coil assemblies.
  • the lead frame or multi-chip module would include a pair of holes for receiving the terminals of each coil assembly.
  • the terminals of a plurality of coil assemblies are connected to a lead frame or a multi-chip module.
  • a plurality of valves is supported by a hydraulic control unit.
  • Each of the coil assemblies, though connected to the lead frame or multi-chip module, must align with a corresponding valve sleeve. This often requires that a certain amount of slop exist between the coil assembly bobbins and the valve sleeves as a result of manufacturing tolerances.
  • the slop reduces the magnetic field established in the armature.
  • an inability to control the position of the flux return casings relative to their respective valve seats may result in insufficient contact between the flux return casings and the valve seats. This further reduces the magnetic field established in the armature.
  • a coil assembly is needed that fits snuggly about the valve cartridge armature and that encounters minimal axial translation resulting from manufacturing tolerances to maximize the magnetic flux through the valve armature.
  • the present invention is directed towards a coil assembly that meets the foregoing needs.
  • the coil assembly comprises a coil wound upon a bobbin.
  • a pair of terminals is supported by the bobbin.
  • the coil has a pair of lead wires, each of which is connected to one of the terminals.
  • Each terminal is adapted to be coupled to an electronic control unit.
  • the coil is enclosed at least in part by a flux return casing.
  • At least one resilient member is arranged and configured to urge the bobbin and the casing axially downward.
  • FIG. 1 is a side elevational view of a self-locating coil assembly according to the invention carried by a solenoid valve that is supported by a valve body.
  • FIG. 2 is a perspective view of the coil assembly shown in FIG. 1 .
  • FIG. 3 is a front elevational view of the coil assembly shown in FIGS. 1 and 2.
  • FIG. 4 is a side elevational view of the coil assembly shown in FIGS. 1-3.
  • FIG. 5 is a side elevational view of an alternative coil assembly.
  • FIG. 6 is a side elevational view of yet another coil assembly.
  • FIG. 1 there is shown a sectional view of a solenoid valve 10 mounted upon a valve body 12 .
  • the valve 10 includes an axially shiftable armature 14 , which is biased in an upward direction by a biasing element, such as the spring 16 shown.
  • the spring 16 maintains a valve ball 18 in a normally opened position.
  • a biasing element may be provided to maintain the valve ball 18 in a normally opened position.
  • the valve ball 18 is adapted to cooperate with a valve seat member 20 , which is provided in the valve body 12 .
  • the armature 14 is adapted to slide within a valve sleeve 22 .
  • a coil assembly is carried by the valve sleeve 22 .
  • the coil assembly includes a solenoid coil 24 .
  • the coil 24 may be comprised of a coil winding 30 .
  • the coil winding 30 is formed from multiple turns 80 of an insulated magnet wire having a round cross section, such as #281 ⁇ 2 magnet wire.
  • the coil wire is preferably a helical coil, as shown in FIG. 4, wound upon a bobbin 32 .
  • the bobbin 32 is formed of a non-conductive material.
  • the bobbin 32 supports a pair of terminal supports 34 . Each of the supports 34 is adapted to support a terminal 36 .
  • a lead wire 82 of the coil 30 is wound around a lower end 84 of each of the terminals 36 and soldered thereto.
  • any remaining portion of the lead wires 82 may be tucked into a channel 40 bounded between two vertically spaced flanges 42 , 44 at the upper end of the bobbin 32 .
  • An upper end 86 of each terminal 36 may be coupled to an electrical control unit 88 , such as by a lead frame or multi-chip Module 90 .
  • the lead frame or multi-chip module may support a plurality of coils for controlling a plurality of valves in a hydraulic control unit.
  • the lead frame or multi-chip module would include a pair of holes for receiving each pair of terminals.
  • the terminals 36 are compliant to enable the coil assembly to be positioned relative to a corresponding valve.
  • the particular terminals 36 illustrated include an intermediate portion 38 that is extendable, retractable, and laterally displaceable. This is accomplished by providing segments of the intermediate portion 38 that bend and overlap. Although other configurations are conceivable, the segments bend and overlap to form a substantially S-shaped configuration that is extendable, retractable, and laterally displaceable.
  • the coil 24 is enclosed at least in part by a metal flux return casing 26 .
  • An annular flux ring 28 is disposed within an opening at the upper end of the bobbin 12 .
  • the flux ring 28 is adapted to engage the flux return casing 26 .
  • the flux ring 28 and the flux return casing 26 may be of unitary construction.
  • the flux return casing 26 and flux ring 28 complete a magnetic flux path that passes through the armature 14 and the valve seat member 20 .
  • the bobbin 32 is provided with a resilient member, such as a spring, that minimizes axial translation of the bobbin 32 .
  • a pair of springs 46 is supported by the upper end of the bobbin 32 .
  • the springs 46 are supported in spaced relation to one another by an uppermost flange 42 .
  • Each spring 46 is in the form of an elongate resilient member extending in an upward direction from the uppermost flange 42 .
  • a lower end of each spring 46 is preferably molded to the upper flange 44 .
  • An intermediate portion 48 of each spring 46 is disposed at an angle between 0 and 90 degrees relative to the uppermost flange 42 .
  • each spring 46 may be bent to form a substantially horizontally extending portion.
  • the horizontally extending portion defines a contact member 50 that is adapted to engage the lead frame or multi-chip module upon coupling the terminals 36 to the lead frame or multi-chip module.
  • a curved region 52 of each spring 46 provides a smooth transition between the intermediate portion 48 and the contact member 50 .
  • the lead frame or multi-chip module may smoothly traverse the curved region 52 .
  • the compressed springs 46 urge the bobbin 32 axially downward along the valve armature 14 and cause the metal flux return casing 26 to contact the valve seat member 20 to complete a magnetic flux return path that is adapted to pass through the armature 14 and the valve seat member 20 .
  • the magnetic flux path must be sufficient to pull the armature 14 against the force of the spring 46 to open or close the valve ball 18 .
  • FIG. 5 An alternative embodiment of the invention is illustrated in FIG. 5 .
  • a single helical spring 54 is supported by the upper end of a flux return casing 56 .
  • the spring 54 is adapted to be compressed between the casing 56 and the lead frame or multi-chip module. When compressed, the spring 54 urges the coil assembly axially downward.
  • the casing 56 is urged into contact with the valve seat member 58 and the flux ring 60 in the opening at the upper end of the bobbin 62 .
  • the spring 54 of this embodiment functions to position or locate the coil assembly.
  • FIG. 6 Yet another embodiment of the invention is illustrated in FIG. 6 .
  • This embodiment includes a metal helical spring 64 .
  • the spring 64 is dimensioned to receive the armature (not shown) and adapted to be compressed between the bobbin 66 and a metal plate 68 .
  • the plate 68 is adapted to engage a metal flux return casing 70 .
  • the flux return casing 70 , the spring 64 , and the plate 68 complete a magnetic flux path that passes through the armature (not shown) and the valve seat member 72 .
  • the spring 64 according to this embodiment of the invention functions to position the coil assembly and complete the magnetic flux path.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A coil assembly comprises a coil wound upon a bobbin. A pair of terminals is supported by the bobbin. The coil has a pair of lead wires, each of which is connected to one of the terminals. Each terminal is adapted to be coupled to an electronic control unit. The coil is enclosed at least in part by a flux return casing. At least one resilient member is arranged and configured to urge the bobbin and the casing axially downward.

Description

BACKGROUND OF THE INVENTION
This invention relates in general to a coil assembly and more particularly to a coil assembly that fits snuggly about a valve cartridge armature and that encounters minimal axial translation due to manufacturing tolerances.
Coil assemblies are well known. A conventional coil assembly includes a coil in the form of an insulated magnet wire wound on an insulated bobbin. The bobbin supports a pair of terminals. Lead wires of the magnet wire are wound upon the terminals. The terminals may be connected to a current source. Current passing through the magnet wire produces magnetic flux.
Conventional coil assemblies are typically used as control devices. For example, conventional coil assemblies may be used to control valves. Valves controlled by coil assemblies include an axially shiftable armature. The armature is biased by spring to maintain a valve ball in a normally opened or closed position. The valve ball is adapted to cooperate with a valve seat member, which is provided in a valve body. The armature typically slides within a valve sleeve. The coil assembly is carried by the valve sleeve.
Coil assemblies for controlling valves like the valve described above are typically enclosed by a flux return casing. An annular flux ring is often disposed within an open end of the bobbin. The annular flux ring is adapted to engage the flux return casing to complete a magnetic flux path that is adapted to pass through the armature and the valve seat member.
To actuate the valve, electric current is supplied through the terminals to the coil. The current establishes a magnetic field in the armature, which pulls the armature against the force of the spring to open or close the valve ball. An interruption in the current causes the magnetic field to collapse. This allows the spring to return the armature to its normal position.
To insure proper operation of the valve, the armature and sleeve must fit within a close tolerance of the bobbin. The bobbin must fit within a close tolerance of the flux return casing. Moreover, the annular flux ring, the flux return casing, the armature, and the valve seat member must make sufficient contact with one another.
A plurality of valves is often supported by a hydraulic control unit. Each of the valves is controlled by a separate coil assembly. The coil assemblies are typically controlled by an electronic control unit. The electronic control unit is often coupled to the coil assemblies via a lead frame or multi-chip module that is adapted to support a plurality of coil assemblies. The lead frame or multi-chip module would include a pair of holes for receiving the terminals of each coil assembly.
A problem exists with positioning the coil assemblies relative to respective valves do to manufacturing tolerances. For example, the terminals of a plurality of coil assemblies are connected to a lead frame or a multi-chip module. A plurality of valves is supported by a hydraulic control unit. Each of the coil assemblies, though connected to the lead frame or multi-chip module, must align with a corresponding valve sleeve. This often requires that a certain amount of slop exist between the coil assembly bobbins and the valve sleeves as a result of manufacturing tolerances. The slop reduces the magnetic field established in the armature. In addition, an inability to control the position of the flux return casings relative to their respective valve seats may result in insufficient contact between the flux return casings and the valve seats. This further reduces the magnetic field established in the armature.
A coil assembly is needed that fits snuggly about the valve cartridge armature and that encounters minimal axial translation resulting from manufacturing tolerances to maximize the magnetic flux through the valve armature.
SUMMARY OF THE INVENTION
The present invention is directed towards a coil assembly that meets the foregoing needs. The coil assembly comprises a coil wound upon a bobbin. A pair of terminals is supported by the bobbin. The coil has a pair of lead wires, each of which is connected to one of the terminals. Each terminal is adapted to be coupled to an electronic control unit. The coil is enclosed at least in part by a flux return casing. At least one resilient member is arranged and configured to urge the bobbin and the casing axially downward.
Various objects and advantages of this invention will become apparent to those skilled in the art from the following detailed description of the preferred embodiment, when read in light of the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side elevational view of a self-locating coil assembly according to the invention carried by a solenoid valve that is supported by a valve body.
FIG. 2 is a perspective view of the coil assembly shown in FIG. 1.
FIG. 3 is a front elevational view of the coil assembly shown in FIGS. 1 and 2.
FIG. 4 is a side elevational view of the coil assembly shown in FIGS. 1-3.
FIG. 5 is a side elevational view of an alternative coil assembly.
FIG. 6 is a side elevational view of yet another coil assembly.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to FIG. 1, there is shown a sectional view of a solenoid valve 10 mounted upon a valve body 12. The valve 10 includes an axially shiftable armature 14, which is biased in an upward direction by a biasing element, such as the spring 16 shown. The spring 16 maintains a valve ball 18 in a normally opened position. Alternatively, a biasing element may be provided to maintain the valve ball 18 in a normally opened position. The valve ball 18 is adapted to cooperate with a valve seat member 20, which is provided in the valve body 12. The armature 14 is adapted to slide within a valve sleeve 22.
A coil assembly is carried by the valve sleeve 22. The coil assembly includes a solenoid coil 24. The coil 24 may be comprised of a coil winding 30. As best seen in FIG. 4, the coil winding 30 is formed from multiple turns 80 of an insulated magnet wire having a round cross section, such as #28½ magnet wire. The coil wire is preferably a helical coil, as shown in FIG. 4, wound upon a bobbin 32. The bobbin 32 is formed of a non-conductive material. The bobbin 32 supports a pair of terminal supports 34. Each of the supports 34 is adapted to support a terminal 36. A lead wire 82 of the coil 30 is wound around a lower end 84 of each of the terminals 36 and soldered thereto. Any remaining portion of the lead wires 82 may be tucked into a channel 40 bounded between two vertically spaced flanges 42, 44 at the upper end of the bobbin 32. An upper end 86 of each terminal 36 may be coupled to an electrical control unit 88, such as by a lead frame or multi-chip Module 90.
The lead frame or multi-chip module may support a plurality of coils for controlling a plurality of valves in a hydraulic control unit. The lead frame or multi-chip module would include a pair of holes for receiving each pair of terminals. In a preferred embodiment of the invention, the terminals 36 are compliant to enable the coil assembly to be positioned relative to a corresponding valve. The particular terminals 36 illustrated include an intermediate portion 38 that is extendable, retractable, and laterally displaceable. This is accomplished by providing segments of the intermediate portion 38 that bend and overlap. Although other configurations are conceivable, the segments bend and overlap to form a substantially S-shaped configuration that is extendable, retractable, and laterally displaceable.
The coil 24 is enclosed at least in part by a metal flux return casing 26. An annular flux ring 28 is disposed within an opening at the upper end of the bobbin 12. The flux ring 28 is adapted to engage the flux return casing 26. The flux ring 28 and the flux return casing 26 may be of unitary construction. The flux return casing 26 and flux ring 28 complete a magnetic flux path that passes through the armature 14 and the valve seat member 20.
To actuate the valve 10, electric current is supplied through the terminals 36 to the coil 24. The current establishes a magnetic field in the armature 14, which pulls the armature 14 in a downward direction, closing the valve ball 18. An interruption in the current causes the magnetic field to collapse. This allows the spring 16 to return the armature 14 to its original position, thereby reopening the valve ball 18. Other solenoid valves, such as normally closed solenoid valves, may have structures similar to the normally open valve 10 described above.
In accordance with a preferred embodiment of the present invention, the bobbin 32 is provided with a resilient member, such as a spring, that minimizes axial translation of the bobbin 32. As illustrated in FIGS. 2-4, a pair of springs 46 is supported by the upper end of the bobbin 32. The springs 46 are supported in spaced relation to one another by an uppermost flange 42. Each spring 46 is in the form of an elongate resilient member extending in an upward direction from the uppermost flange 42. A lower end of each spring 46 is preferably molded to the upper flange 44. An intermediate portion 48 of each spring 46 is disposed at an angle between 0 and 90 degrees relative to the uppermost flange 42. An upper end of each spring 46 may be bent to form a substantially horizontally extending portion. The horizontally extending portion defines a contact member 50 that is adapted to engage the lead frame or multi-chip module upon coupling the terminals 36 to the lead frame or multi-chip module. A curved region 52 of each spring 46 provides a smooth transition between the intermediate portion 48 and the contact member 50.
Upon compressing the springs 46, the lead frame or multi-chip module may smoothly traverse the curved region 52. The compressed springs 46 urge the bobbin 32 axially downward along the valve armature 14 and cause the metal flux return casing 26 to contact the valve seat member 20 to complete a magnetic flux return path that is adapted to pass through the armature 14 and the valve seat member 20. The magnetic flux path must be sufficient to pull the armature 14 against the force of the spring 46 to open or close the valve ball 18.
An alternative embodiment of the invention is illustrated in FIG. 5. According to this embodiment, a single helical spring 54 is supported by the upper end of a flux return casing 56. The spring 54 is adapted to be compressed between the casing 56 and the lead frame or multi-chip module. When compressed, the spring 54 urges the coil assembly axially downward. The casing 56 is urged into contact with the valve seat member 58 and the flux ring 60 in the opening at the upper end of the bobbin 62. Similar to the springs 46 of the foregoing embodiment, the spring 54 of this embodiment functions to position or locate the coil assembly.
Yet another embodiment of the invention is illustrated in FIG. 6. This embodiment includes a metal helical spring 64. The spring 64 is dimensioned to receive the armature (not shown) and adapted to be compressed between the bobbin 66 and a metal plate 68. The plate 68 is adapted to engage a metal flux return casing 70. The flux return casing 70, the spring 64, and the plate 68 complete a magnetic flux path that passes through the armature (not shown) and the valve seat member 72. The spring 64 according to this embodiment of the invention functions to position the coil assembly and complete the magnetic flux path.
In accordance with the provisions of the patent statutes, the principle and mode of operation of this invention have been explained and illustrated in its preferred embodiment. However, it must be understood that this invention may be practiced otherwise than as specifically explained and illustrated without departing from its spirit or scope.

Claims (20)

What is claimed is:
1. A coil assembly comprising:
a bobbin having an open end;
coil wound upon said bobbin, said coil including a pair of lead wires;
a pair of compliant electrical connectors carried by said bobbin, each of said electrical connectors being electrically connected to one of said coil lead wires, said electrical connectors being adapted to electrically couple said coil lead wires to an electronic control unit;
a flux return casing at least partially enclosing said coil; and
at least one elongate resilient member molded upon an end of said bobbin, said resilient member configured to urge said bobbin and said flux return casing in an axial direction.
2. The coil assembly of claim 1, further comprising:
an annular flux ring disposed within said open end of said bobbin, said flux ring being adapted to engage said flux return casing, said flux return casing and said flux ring completing a magnetic flux path that includes an armature and a valve seat member of a valve cartridge.
3. The coil assembly of claim 1, wherein said coil is comprised of a magnet wire having a round cross-section.
4. The coil assembly of claim 3, wherein said magnet wire is wound as a helical coil upon said bobbin.
5. The coil assembly of claim 1, wherein said bobbin is formed of a non-conductive material.
6. The coil assembly of claim 1, wherein said compliant electrical connectors include a pair of flexible coil lead wires and further wherein said bobbin supports a pair of terminal supports, each one of said terminal supports being adapted to support one of said coil lead wires.
7. The coil assembly of claim 2, wherein said coil includes a pair of lead wires and further wherein said bobbin supports a pair of terminals, each of said lead wires being connected to one of said terminals, each of said terminals being adapted to be coupled to the electronic control unit by a lead frame or multi-chip module.
8. The coil assembly of claim 7, wherein said bobbin includes two axially spaced flanges bounding a channel, said channel being adapted to receive said lead wires.
9. The coil assembly of claim 7, wherein said terminals are compliant.
10. The coil assembly of claim 9, wherein said terminals include an intermediate portion that is extendable, retractable, and laterally displaceable.
11. The coil assembly of claim 10, wherein said intermediate portion of each said terminal is comprised of segments that bend and overlap.
12. The coil assembly of claim 11, wherein said terminal segments bend and overlap to form a substantially S-shaped configuration.
13. The coil assembly of claim 1, wherein said resilient member is supported by an end of said bobbin.
14. The coil assembly of claim 1, wherein said resilient member is supported by an end of said flux return casing so that said resilient member is adapted to be compressed between said flux return casing and a lead frame or multi-chip module to urge said flux return casing into contact with a valve seat member.
15. The coil assembly of claim 14, wherein said flux ring is urged into an open end of said bobbin.
16. The coil assembly of claim 14, wherein said flux ring and said flux casing are of unitary construction.
17. The coil assembly of claim 13, wherein said resilient member is one of a pair of resilient members, each said resilient member forming a spring supported by an end of said bobbin.
18. A coil assembly comprising:
a bobbin having an open end;
a coil wound upon said bobbin, said coil including a pair of lead wires;
a pair of compliant electrical connectors carried by said bobbin, each of said electrical connectors being electrically connected to one of said coil lead wires, said electrical connectors being adapted to electrically couple said coil lead wires to an electronic control unit;
a flux return casing at least partially enclosing said coil; and
a pair of resilient members supported by an end of said bobbin, each of said resilient members forming a spring supported by said end of said bobbin and urging said bobbin and said casing in an axial direction, each said resilient member further having a first end molded to a flange formed upon an end of said bobbin, an intermediate portion extending away from said bobbin flange at an angle relative to an axis of said bobbin, each of said resilient members also having a second end that is opposite from said first end, said second end forming an angle with said intermediate portion to form a contact member that is parallel to a surface of said bobbin flange, and a curved region between said intermediate portion and said contact member.
19. The coil assembly of claim 1, wherein said resilient member is a helical spring supported by an upper end of said flux return casing, said spring being adapted to be compressed between said casing and a lead frame or multi-chip module and urge said bobbin and said flux return casing downward into contact with a valve seat member and said flux ring into an open end of said bobbin.
20. The coil assembly of claim 1, wherein said resilient member is a helical spring dimensioned to receive a valve armature and adapted to be compressed between said bobbin and a metal plate, said plate being adapted to engage said flux return casing, said flux return casing, said spring, and said plate completing a magnetic flux path that passes through the armature and the valve seat member.
US09/760,075 2001-01-12 2001-01-12 Self-locating coil assembly Expired - Fee Related US6633216B2 (en)

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PCT/US2002/004678 WO2002055355A2 (en) 2001-01-12 2002-01-11 Coil assembly
US10/466,226 US6985060B2 (en) 2001-01-12 2002-01-11 Control unit for vehicle brake system

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070103265A1 (en) * 2005-11-09 2007-05-10 Denso Corporation Electromagnetic switch of starter
US20080246564A1 (en) * 2007-04-09 2008-10-09 Whitaker Thomas A Electrical switching apparatus accessory sub-assembly employing reversible coil frame, and accessory and electrical switching apparatus employing the same
US20080246569A1 (en) * 2007-04-09 2008-10-09 Bogdon Erik R Electromagnetic coil apparatus employing a magnetic flux enhancer, and accessory and electrical switching apparatus employing the same
US20100252764A1 (en) * 2007-12-04 2010-10-07 Gerhard Schalowski Connecting element and associated fluid assembly
US20110309277A1 (en) * 2009-01-13 2011-12-22 Danfoss A/S Valve with a solenoid fixed to a plunger tube by a yoke
US9574436B2 (en) 2014-10-22 2017-02-21 Halliburton Energy Services, Inc. Mounting plate apparatus, systems, and methods
US20220215995A1 (en) * 2021-01-04 2022-07-07 Hyundai Mobis Co., Ltd. Coil assembly for breaking vehicle and brake apparatus having the same
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US20230130988A1 (en) * 2020-02-27 2023-04-27 Robert Bosch Gmbh Brake hydraulic pressure control system and straddle-type vehicle

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100653406B1 (en) * 2003-11-12 2006-12-04 주식회사 만도 Coil assembly fixing device for solenoid valve for electronically controlled brake system
DE102004022254B3 (en) * 2004-05-04 2005-06-30 Sew-Eurodrive Gmbh & Co. Kg Electrical coil e.g. electric motor braking coil, with coil former wound with winding coil connected to cable conductor or filament via sleeve with deformable tongue sections
FR2870630B1 (en) * 2004-05-24 2006-11-17 Johnson Contr Automotive Elect ELECTROMAGNETIC ACTUATOR COMPRISING AN ELECTROAIMANT WITH A COIL FREE FROM THE CORE
US9493936B2 (en) * 2004-10-08 2016-11-15 Sdb Ip Holdings, Llc System, method, and apparatus for monitoring wear in a flush valve using pressure detection
DE102006003858A1 (en) * 2006-01-27 2007-08-02 Robert Bosch Gmbh Hydraulic valve assembly with adjacent valves positioned radially by spacer clips linked by flexible springs
US7663269B2 (en) * 2006-12-13 2010-02-16 A-Tech Corporation High bandwidth linear actuator for steering mirror applications
DE102007055728A1 (en) * 2006-12-15 2008-06-19 Advics Co., Ltd., Kariya Fluid pressure control device
JP2008190566A (en) * 2007-02-01 2008-08-21 Advics:Kk Hydraulic control device and its assembling method
DE102007020092B4 (en) * 2007-04-26 2011-06-16 Thomas Magnete Gmbh Switchable magnet arrangement
AT10231U1 (en) 2007-07-03 2008-11-15 Msg Mechatronic Systems Gmbh solenoid
DE102007061910B4 (en) * 2007-12-21 2013-08-08 Zf Friedrichshafen Ag connector
CA2738665A1 (en) * 2008-10-01 2010-04-08 A-Tech Corporation Method and apparatus for precision azimuth measurement
TWM359783U (en) * 2009-02-26 2009-06-21 Delta Electronics Inc Inductor
DE102009026816B4 (en) * 2009-06-08 2021-09-30 Robert Bosch Gmbh Connection element and associated fluid assembly
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US9062791B2 (en) * 2011-05-23 2015-06-23 Nissin Kogyo Co., Ltd. Electric connection structure of electromagnetic valve drive assembly, electromagnetic valve drive assembly, and vehicle brake fluid pressure control apparatus
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DE102016225724A1 (en) * 2016-12-21 2018-06-21 Robert Bosch Gmbh valve device
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US10980120B2 (en) 2017-06-15 2021-04-13 Rain Bird Corporation Compact printed circuit board
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CN109659109B (en) * 2018-12-27 2020-08-04 安徽创新电磁离合器有限公司 Electromagnetic brake coil skeleton structure
US11462854B2 (en) * 2019-11-12 2022-10-04 Aptiv Technologies Limited Electrical connector with a mounting flange and method of assembling same
US11721465B2 (en) 2020-04-24 2023-08-08 Rain Bird Corporation Solenoid apparatus and methods of assembly
US12188525B2 (en) * 2022-02-14 2025-01-07 Sonnax Transmission Company Solenoid stabilizers and methods for stabilizing solenoids in valve bodies

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1515330A (en) 1967-02-27 1968-03-01 Manufacture of cooled pulsed magnetic coils to obtain intense magnetic fields greater than 500 kilo-gauss
US3497845A (en) 1966-10-13 1970-02-24 Corp Soc Civile De Prototype T Fitting a solenoid core to a pole piece structure
US3730146A (en) 1971-11-29 1973-05-01 Gen Motors Corp Pressure-inductance transducer
US3859614A (en) 1973-03-07 1975-01-07 Siemens Ag Electrical coil assembly
US4186363A (en) 1977-08-18 1980-01-29 Eaton Corporation Solenoid assembly for elevated temperature service
JPS5846283A (en) * 1981-09-11 1983-03-17 Aisin Seiki Co Ltd Motor driven proportional control valve used for controlling flow rate of fluid
US4439751A (en) 1981-11-27 1984-03-27 Bso Steuerungstechnik Gmbh Direct current electromagnet
US4728916A (en) 1986-06-05 1988-03-01 Lectron Products, Inc. Solenoid operated fluid control valve
US5198790A (en) 1992-04-27 1993-03-30 Toledo Commutator Co. Electrical transducer
US5533249A (en) 1995-04-27 1996-07-09 Siemens Automotive Corporation Method of making a two piece stator with magnetic bobbin
US5563756A (en) * 1994-03-18 1996-10-08 Ignasiak; Martin C. Resettable ground fault circuit interrupter
US5601275A (en) 1994-07-29 1997-02-11 Aisin Seiki Kabushiki Kaisha Solenoid operated valve
US6065734A (en) 1997-10-03 2000-05-23 Kelsey-Hayes Company Control valve for a hydraulic control unit of vehicular brake systems
US6086042A (en) 1998-04-08 2000-07-11 Wabash Magnetics, Inc. Fluid resistant solenoid actuated valve
US6142445A (en) 1997-05-20 2000-11-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Electromagnetic control valve

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249874B (en) 1990-11-17 1994-09-21 Motorola Gmbh Elastomeric seating member
EP0520047B1 (en) 1991-01-15 1994-10-05 ITT Automotive Europe GmbH Electrohydraulic pressure regulator
US5482362A (en) * 1992-12-31 1996-01-09 Kelsey-Hayes Company Anti-lock brake control valve control module
DE4330827A1 (en) * 1993-09-11 1995-03-16 Teves Gmbh Alfred Electro-hydraulic pressure control device
DE4343325A1 (en) 1993-12-18 1995-06-22 Telefunken Microelectron Valve control device
US5449227A (en) 1994-07-08 1995-09-12 Ford Motor Company Solenoid attachment for antilock brake system
JPH08295221A (en) * 1995-02-27 1996-11-12 Sumitomo Electric Ind Ltd Brake fluid pressure control device
WO1997015936A1 (en) * 1995-10-23 1997-05-01 Kabushiki Kaisha Honda Lock Solenoid valve device
JPH09126207A (en) * 1995-10-31 1997-05-13 Aisin Seiki Co Ltd Pressure controller
DE19612907A1 (en) 1996-03-30 1997-10-02 Teves Gmbh Alfred Controller unit
US5785394A (en) 1996-05-24 1998-07-28 Ford Global Technologies, Inc. Solenoid assembly for anti-lock braking system

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497845A (en) 1966-10-13 1970-02-24 Corp Soc Civile De Prototype T Fitting a solenoid core to a pole piece structure
FR1515330A (en) 1967-02-27 1968-03-01 Manufacture of cooled pulsed magnetic coils to obtain intense magnetic fields greater than 500 kilo-gauss
US3730146A (en) 1971-11-29 1973-05-01 Gen Motors Corp Pressure-inductance transducer
US3859614A (en) 1973-03-07 1975-01-07 Siemens Ag Electrical coil assembly
US4186363A (en) 1977-08-18 1980-01-29 Eaton Corporation Solenoid assembly for elevated temperature service
JPS5846283A (en) * 1981-09-11 1983-03-17 Aisin Seiki Co Ltd Motor driven proportional control valve used for controlling flow rate of fluid
US4439751A (en) 1981-11-27 1984-03-27 Bso Steuerungstechnik Gmbh Direct current electromagnet
US4728916A (en) 1986-06-05 1988-03-01 Lectron Products, Inc. Solenoid operated fluid control valve
US5198790A (en) 1992-04-27 1993-03-30 Toledo Commutator Co. Electrical transducer
US5563756A (en) * 1994-03-18 1996-10-08 Ignasiak; Martin C. Resettable ground fault circuit interrupter
US5601275A (en) 1994-07-29 1997-02-11 Aisin Seiki Kabushiki Kaisha Solenoid operated valve
US5533249A (en) 1995-04-27 1996-07-09 Siemens Automotive Corporation Method of making a two piece stator with magnetic bobbin
US6142445A (en) 1997-05-20 2000-11-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Electromagnetic control valve
US6065734A (en) 1997-10-03 2000-05-23 Kelsey-Hayes Company Control valve for a hydraulic control unit of vehicular brake systems
US6086042A (en) 1998-04-08 2000-07-11 Wabash Magnetics, Inc. Fluid resistant solenoid actuated valve

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070103265A1 (en) * 2005-11-09 2007-05-10 Denso Corporation Electromagnetic switch of starter
US7549899B2 (en) * 2005-11-09 2009-06-23 Denso Corporation Electromagnetic switch of starter
US20080246564A1 (en) * 2007-04-09 2008-10-09 Whitaker Thomas A Electrical switching apparatus accessory sub-assembly employing reversible coil frame, and accessory and electrical switching apparatus employing the same
US20080246569A1 (en) * 2007-04-09 2008-10-09 Bogdon Erik R Electromagnetic coil apparatus employing a magnetic flux enhancer, and accessory and electrical switching apparatus employing the same
US7557681B2 (en) * 2007-04-09 2009-07-07 Eaton Corporation Electrical switching apparatus accessory sub-assembly employing reversible coil frame, and accessory and electrical switching apparatus employing the same
US7598830B2 (en) * 2007-04-09 2009-10-06 Eaton Corporation Electromagnetic coil apparatus employing a magnetic flux enhancer, and accessory and electrical switching apparatus employing the same
US8534641B2 (en) * 2007-12-04 2013-09-17 Robert Bosch Gmbh Connecting element and associated fluid assembly
US20100252764A1 (en) * 2007-12-04 2010-10-07 Gerhard Schalowski Connecting element and associated fluid assembly
US20110309277A1 (en) * 2009-01-13 2011-12-22 Danfoss A/S Valve with a solenoid fixed to a plunger tube by a yoke
US8641010B2 (en) * 2009-01-13 2014-02-04 Danfoss A/S Valve with a solenoid fixed to a plunger tube by a yoke
US9574436B2 (en) 2014-10-22 2017-02-21 Halliburton Energy Services, Inc. Mounting plate apparatus, systems, and methods
US20230130988A1 (en) * 2020-02-27 2023-04-27 Robert Bosch Gmbh Brake hydraulic pressure control system and straddle-type vehicle
US20220215995A1 (en) * 2021-01-04 2022-07-07 Hyundai Mobis Co., Ltd. Coil assembly for breaking vehicle and brake apparatus having the same
US11862392B2 (en) * 2021-01-04 2024-01-02 Hyundai Mobis Co., Ltd. Coil assembly for breaking vehicle and brake apparatus having the same
US20230015827A1 (en) * 2021-07-09 2023-01-19 Hyundai Mobis Co., Ltd. Valve assembly for brake apparatus of vehicle and manufacturing method therefor
US11964645B2 (en) * 2021-07-09 2024-04-23 Hyundai Mobis Co., Ltd. Valve assembly for brake apparatus of vehicle and manufacturing method therefor

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US20040070302A1 (en) 2004-04-15
US6985060B2 (en) 2006-01-10
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DE10295687T5 (en) 2004-04-22
WO2002055355A3 (en) 2002-11-14

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